Tektronix SPG300, Service Manual, Page: 132 / 176

Removal and Installation Procedures
6-30
SPG600 & SPG300 Sync Pulse Generators Service Manual
Power Supply Module
This procedure describes how to remove these modules:
„
Fan
„
Power supply
1. Locate modules to be removed: Locate the fan and power supply module in the
locator diagram SPG300 Internal modules , Figure 6-5, on page 6-11.
2. Orient the instrument: Set the SPG300 so its bottom is down on the work
surface and its right side is facing you.
3. Remove the fan: See Figure 6-17.
a. Unplug the fan’s power cable from J3 on the A50 Main board.
b. Use a screwdriver with a #2 Phillips tip to remove the three screws
securing the fan to the power supply shield.
c. Lift the fan up and away from the shield to complete the removal
4. Remove the power supply: See Figure 6-17.
a. Unplug the two cables from the RFI filter.
b. Unplug the cable from A50 Main board at J900.
c. Use a screwdriver with a #2 Phillips tip to remove the four screws securing
the power supply and the shield to the chassis.
d. Lift the shield up and away from the chassis.
e. Lift the power supply up and away from the chassis.
5. Reinstallation: Perform steps 3 and 4 in reverse order to reinstall the power
supply module.